Seems sativa bud types IME more susceptible to septoria, while bud rot is more prevalent in indica.
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Any specific grows?
Sati is more open, but these spores are everywhere. Iām sure it helps.
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Grow hybrids made with Pakistani rather than Afghani. Pakistani landraces can handle some humidity. ( Balochistan excepted)
Even within Afghanistan, stay away from anything South of the Kush, such as Kandahar. These types are better indoors. N Afghan is more resistant than South, with Mazar-i-sharif having the most resistance of the well known Northern cultivars.
Mold sucks. Picking at it myself just this morning.
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That is some deep Wisdom @Upstate! 
Thanks,
-Grouchy
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The one going now. Godfather OG is one that is devastated by the septoria. The OG Kush hardly tell. Tomatoes a few vines with fruit and no leaves, all in the same garden. PM ate the pumpkins and melons but so far not seeing any on the cannabis.
Carnies Breath seems unaffected by any of it and is out doing the OG Kush as far as huge and indica like.
Wedding Cake is taking the septoria bad. Most of this stuff got a strong start and should make something even so. There were a couple small spots of bud rot on the WC so far.
Trying to get a little furtherā¦ 
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I found potassium bicarbonate works great at killing and keeping the bud rot at bay the only thing is it will make the flower hairs die back and slow growth alittle . .3% h202 at 30ml per 500ml of water will kill it and not effect flowers or growth but doesnāt keep it from coming back. Both are safe to to use right up until harvest. I also found once a plant is effected its impossible to remove the fungus from its system so its easier to start with a prevention before you start having the problem. A prevention I use is normally an oil such as neem . Also itās good to shake the water off the plants after every rain sense thatās usually the conditions it starts in. Also I kill off off all vegetation around my plants and try to keep them in the sunniest spots so they dry out faster and humidity stays the lowest
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Iām saving your entire response to experiment with next season.
What form do you buy potassium bicarbonate?
How do you apply it? How often?
What concentration have you tried?
Thanks,
-Grouchy
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In my area Iāve found the only strain that prevents bud rot outside isā¦ autoflowers. Not the solution you wanted to hear, but in the wet pacific Northwest where Iām at it seems to be pretty important to finish up by mid to late September and that just doesnāt seem to be possible with standard photos. This year Iāve had pretty good luck with a f1 auto x photo cross that I made that started flowering much earlier than my standard photo. However, I still moved it inside a couple of days ago to finish up.
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Iāve used different brands of potassium bicarbonate with the same results I think the stuff I buy is for baking/ dietary supplement witch i just buy the cheapest i can really as long as the ingredients are the same. For the recipe I think I use a few drops of surfactant with about 1-2tbs of potassium bicarbonate per gallon of sterilize water and spray once every few days and right after a rain.i also experimented with adding h202 with that recipe but i now perfer one or the other .
I think what it does is change the ph of the leaf surface so fungus wonāt grow on it and it dries out the spores so it cant spread. Products such as greencure are potassium bicarbonate based and are used as a fungicide for organic gardening there product has been harder to find nowadays plus it cost alot more but works the same in my experience . Also clip out the rot as you see it with clean clippers and treat it like a contagious virus. Anything dead on the plant should be removed as soon as you see them as those are the first points to get hit agian
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I can only speak to PM but milk buys 3 days, bicarbonate buys 4-5, and bleach was 7.
I doubt itād do much on botrytis. Inside outside outside inside.
Best advice is prevention is best. There are measures you can take. I often forget but I like to do a full spectrum IPM at the end of veg so I know they are clean going in and I get a running start.
Itās also a good idea to limit water at end of life.
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Thanks @Franklin, āOutdoor Autoflowersā may actually be the best answer for my conditions. The fact is that our Spring & Summers here on Cape Cod have excellent growing conditions and anything that finishes before September would be golden. And I like the fast pace of autos anywhoā¦
All the bad news starts in early Fall, caterpillars, PM, Bud Rot & bugs are all on the prowl then.
Good thinking, thanks.
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Most Excellent Intel @RoadKill. Thank you for filling in the blanks!
I like the theory behind your treatment as well. Iām stocking up and Iāll try this the next time I am being stalked by the āNobel Rot!ā
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FYI
Baking soda works just as well as potassium bicarbonate but may build up sodium in the soil in time, so potassium bicarbonate is a better choice, but I often use baking soda if I donāt have any on hand.
Phosphite is really good as a preventative and works from inside the plant.
Chitosan is another good choice cause it will actually coat the leaves for a short time and works well as a preventative.
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Food for thought hereā¦
Moringa Oleifera
If you click the #71 it will take you to the reference.
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